How to print the values of objects stored in a list

Question

I'm trying to iterate over User objects stored in a python list called myusers then print each. This is what I've done:

class User:
    def __init__(self,name,age):
        self.name = name
        self.age = age

myusers= [User("Fred", "30"), User("Doe", "20")] 

for i in range(2):
    print(str(myusers[i]))

what I get from the above is the memory location as follows:

<__main__.User object at 0x000001FD807B4250>
<__main__.User object at 0x000001FD807F13A0>

However, I was expecting to get:

User("Fred", "30")
User("Doe", "20")

I've seen this question: https://stackoverflow.com/questions/59115308/print-out-objects-stored-in-a-list but it didn't answer my question since I'm using str in the print function. Can anyone let me know when I'm not getting this value?

you would need to write a `__str__` function in your class, so your class knows how to turn its self into a string. — Chris Doyle, Mar 29 '21 at 16:24
The accepted answer in that question _does exactly what you need!_ — Pranav Hosangadi, Mar 29 '21 at 16:25
Also, you don't need to explicitly convert to a string by `str()` before printing. `print()` already does that for you if the argument isn't a string. — Pranav Hosangadi, Mar 29 '21 at 16:28

score 1 · Answer 1 · answered Mar 29 '21 at 16:26

As remarked in the comments, you should define a __str__ method, which defines how to represent your object as a string.

class User:
    def __init__(self,name,age):
        self.name = name
        self.age = age
    def __str__(self):
        return f'User("{self.name}", "{self.age}")'

myusers= [User("Fred", "30"), User("Doe", "20")] 

for i in range(2):
    print(myusers[i])

How to print the values of objects stored in a list

1 Answers1